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commands/efi/lsefisystab: Print the UEFI specification revision in human readable form

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E.g. 2.10 instead of 00020064 and 2.3.1 instead of 0002001f.

See UEFI 2.10 specification, chapter 4.2.1 EFI_TABLE_HEADER.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Heinrich Schuchardt 2023-07-14 08:12:30 +02:00 committed by Daniel Kiper
parent e58b870ff9
commit a19e47ca41
1 changed files with 8 additions and 2 deletions
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10
grub-core/commands/efi/lsefisystab.c
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@ -64,12 +64,18 @@ grub_cmd_lsefisystab (struct grub_command *cmd __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
const grub_efi_system_table_t *st = grub_efi_system_table;
const grub_efi_uint32_t major_rev = st->hdr.revision >> 16;
const grub_efi_uint32_t minor_rev_upper = (st->hdr.revision & 0xffff) / 10;
const grub_efi_uint32_t minor_rev_lower = (st->hdr.revision & 0xffff) % 10;
grub_efi_configuration_table_t *t;
unsigned int i;
grub_printf ("Address: %p\n", st);
grub_printf ("Signature: %016" PRIxGRUB_UINT64_T " revision: %08x\n",
st->hdr.signature, st->hdr.revision);
grub_printf ("Signature: %016" PRIxGRUB_UINT64_T " revision: %u.%u",
st->hdr.signature, major_rev, minor_rev_upper);
if (minor_rev_lower)
grub_printf (".%u", minor_rev_lower);
grub_printf ("\n");
{
char *vendor;
grub_uint16_t *vendor_utf16;